FLeX Series, 2-way, 2-stage, solenoid-operated directional poppet valve with reverse flow check - flow 2-1

Capacity: 10 gpm40 L/min. | Cavity: T-162A
DFBG : FLeX Series, 2-way, 2-stage, solenoid-operated directional poppet valve with reverse flow check - flow 2-1
Technical Features [ + ]

This FLeX Series solenoid-operated 2-way, 2-stage cartridge is a pilot-operated directional poppet valve. The valve is low leakage and available in either a normally open or normally closed configuration to control flow from port 2 to port 1. A reverse flow check will allow flow from 1 to 2 in either the open or closed condition.

  • Designed and tested to 10 million on-off operational cycles.
  • Meets new NFPA test standard T2.6.1 R2014 for fatigue and burst pressure ratings.
  • Higher flow rates than competing valves of similar size.
  • Designed using CFD fluid simulation for optimized geometries.
  • All configurations of this valve include zinc-nickel plating as standard for 1000-hour salt fog protection.
  • Coil connector options offer ratings up to IP69K. See individual coil product pages for details.
  • This valve exhibits extremely low leakage - 0.004 in3 (0.07 cc3)/min (1 drop/min).
  • This cartridge utilizes both FLeX high-power and hazardous location coils.
  • This valve is available with a manual push-type override option for normally open versions only.
  • A FULL DATA SHEET is available for this model using the link at the top of the page.
  • Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
Technical Data [ + ]
Note: Data may vary by configuration. See CONFIGURATION section.
Cavity T-162A
Series 0
Capacity 10 gpm40 L/min.
Maximum Operating Pressure 5000 psi350 bar
Response Time - Typical 50 ms50 ms
Maximum Valve Leakage at 110 SUS (24 cSt) 0.004 in³/min.@5000 psi0.07 cc/min.@350 bar
Check Cracking Pressure 50 psi3,5 bar
Switching Frequency 15000 cycles/hr15000 cycles/hr
Viscosity Range 35 - 2000 SUS2,8 - 380 cSt
Valve Hex Size 3/4 in.19,1 mm
Valve Installation Torque 20 - 25 lbf ft27 - 33 Nm
Seal kit - Cartridge Buna: 990162007
Seal kit - Cartridge Viton: 990162006
Performance Curves [ + ]
FAQs [ + ]

There are exactly 250 Sun drops in a cubic inch or 15 in a cc.

Direct-acting valves are used to prevent over pressure, and pilot-operated valves are used to regulate pressure. If you are unsure, use a direct-acting valve. Sun's direct acting valves are very fast, dirt tolerant, stable, and robust. Sun's pilot-operated valves are moderately fast, they have a low pressure rise vs. flow curve, and they are easy to adjust.

Yes. All FLeX phase 1 valves are available in the SmartConnect schematic tool, and are also available for submittal to QuickDesign.
Yes. All FLeX valves utilize the Sun floating nose design.
Nominal flow capacity is based on performance limits. Maximum flow capacity is based on pressure drop. When selecting any direct-acting solenoid valve, first check the performance limits plot, then check if pressure drop is acceptable.
DF** FLeX cartridges shift at rated flow and pressure.
Notes [ + ]
  • Please verify cartridge clearance requirements when choosing a Sun manifold. Different valve controls and coils require different clearances.
  • An additional 2.00 inches (50,8 mm) beyond the valve extension is needed for coil installation and removal.
Additional Resources [ + ]
Coil Information [ + ]

No coil selected.